JP4267503B2 - Damping structure - Google Patents

Description

  The present invention relates to a vibration control structure in a sash joinery.

  Conventionally, as a seismic control structure in a wooden building, as a structure to resist seismic force, a wall surrounded by horizontal members such as columns and beams, and walls that have been struck with earthen walls or wood and its combined use, etc. Is used.

  On the other hand, a lot of window openings are arranged on the south outer wall of the building in order to secure a lot of daylighting and sunshine, and a louver for ventilation and small windows are arranged on the north surface. For this reason, there are many striations and walls on the north surface, but there are not many striations or walls on the south surface, and there is a large difference in stiffness and proof strength to resist seismic forces on the north and south surfaces. As a result, there is a tendency to twist in a plane in the event of an earthquake, and there is a tendency for buildings to collapse from the south, and there are many wooden buildings that have problems with earthquake resistance.

  In order to seismically reinforce such a wooden building, conventionally, a seismic reinforcing material such as a streak having rigidity and strength has been added to the south surface. However, the addition of these seismic reinforcements may actually damage the landscape of the building, impede the transmission of light, and prevent the outside scenery such as the garden from being seen from the inside. That is rare.

  Therefore, there is one that uses an exterior sash that always exists on the outer wall surface of a building as an earthquake-resistant member (see, for example, Patent Document 1).

  As shown in FIG. 2B, the exterior sash includes a sash frame member 21, a viscous body 22, and a transparent surface member 23 such as glass. The sash frame member 21 includes columns and beams on the outer wall surface of the building. The viscous body 22 is accommodated in a groove formed by the sash frame member 21, and the transparent surface member 23 such as glass has an outer peripheral portion at the sash frame member 21. Is disposed so as to be movable relative to the sash frame member 21 in the in-plane direction.

When a horizontal displacement occurs due to an earthquake or the like, the sash frame member 21 is deformed according to the deformation of the column beam structure of the building, but the transparent surface member 23 is viscously fixed by the viscous body 22 in the sash frame member 21. Resists deformation. Therefore, the horizontal displacement (seismic energy) generated by an earthquake or the like is absorbed by the damping action caused by the deformation of the viscous body 22, and the earthquake resistance of the exterior sash is improved.
JP 2001-193357 A

  A wooden building is known to cause a large interlayer deformation in the event of a large earthquake due to the mechanical properties of the wood and the mechanism of the joint, but the invention described in Patent Document 1 is a glass mounted in a sash frame. Since the face material made of a plate is composed of a single sheet, this face material is required to have an ability to follow the deformation even when it is deformed to the interlayer deformation δ.

  The object of the present invention is to eliminate the inconvenience of the conventional example, and to provide seismic performance to a sash joinery such as an exterior sash in which a face material such as a glass plate is mounted in a sash frame, per face material. An object of the present invention is to provide a seismic control structure that can reduce the amount of horizontal displacement (earthquake energy) that is required and can ensure the seismic control function of the entire sash joinery.

  The present invention achieves the above-mentioned object, and the invention according to claim 1 is a sash joinery in which a face material such as glass is mounted in a sash frame, wherein the face material is divided into a plurality of divided bodies at least in the lateral direction. The gist is that it is formed as a group, and a viscoelastic body is interposed between each divided body to form a laminated body, and each divided body is mounted on a sash frame so that it can be moved horizontally through the viscoelastic body. To do.

  According to the first aspect of the present invention, when a horizontal displacement occurs at the time of the occurrence of an earthquake, since each divided body absorbs seismic energy independently by making the face material into divided bodies, deformation between the divided bodies. The amount can be reduced, and the ability to absorb seismic energy required for a single unit can be reduced. And as a whole sash joinery, it can fully follow interlayer deformation and a vibration control function is certainly exhibited.

  The gist of the invention described in claim 2 is that the sash frame is attached to the inside of an existing window frame by an attachment member.

  According to the second aspect of the present invention, since the sash frame can be attached to the inside of the existing window frame, the vibration control function can be easily given to the existing building.

  The gist of the invention described in claim 3 is that the face material is individually pin-coupled to the sash frame with a fixed hardware for each divided body.

  According to this invention of Claim 3, when the whole sash joinery is distorted at the time of the occurrence of an earthquake, a division body rotates separately with respect to a sash frame via a pin coupling part, and is displaced. Therefore, the horizontal displacement (earthquake energy) absorbed by each divided body is small.

  As described above, the vibration control structure of the present invention has a structure in which a surface material is divided into a plurality of divided bodies when providing vibration control performance to a sash joinery such as an exterior sash in which a surface material such as a glass plate is mounted in a sash frame. By forming the structure in the case of an earthquake, each divided body is independently displaced separately, so the amount of horizontal displacement (earthquake energy) required per sheet can be reduced, and the seismic energy absorption for each divided body. By ensuring that the seismic control function of the sash joinery as a whole can be ensured.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing an embodiment of the vibration control structure of the present invention, and FIG. 1 (c) is a sash joinery having a vibration control function in which the present invention is carried out. ) Sash frame 2 and a face material 3 made of a glass plate or the like shown in FIG.

In the present invention, the face material 3 is formed by a collection of strip-shaped divided bodies 4 elongated in the lateral direction, and an acrylic polymer viscoelastic body 5 is interposed between the divided bodies 4 and the laminated body. did. As a result, the face material 3 is formed by the laminated body in which the gaps between the divided bodies 4 are filled with the viscoelastic body 5, and each of the divided bodies 4 can move horizontally through the viscoelastic body 5 independently. It is attached to. The viscoelastic body 5 uses, for example, an acrylic polymer as a material, can obtain a large attenuation with a small amount of use, is light with a specific gravity of 1, 0, and has a double bond and is chemically It is very stable and therefore has the property of exhibiting damping from a minute amplitude. Moreover, since there is stickiness and self-adhesion is possible, the division body 4 can be couple | bonded easily.

  The sash joiner 1 can be attached to an existing window frame as shown in FIG. 3 (a) and 3 (b) show a case where the sash joinery 1 is movably attached to a duck or sill, which is a window frame 6, and a projection 7 such as a hozo is provided on the sash frame 2 so as to be able to appear and retract, On the other hand, on the side of the window frame 6, a groove-like concave portion 10 in which the sash frame 2 slides is formed, and a concave portion 8 is further formed in the concave portion 10 by a tenon hole or the like into which the projection 7 is inserted.

  Then, as shown in FIG. 3A, if the projection 7 is immersed in the sash frame 2, the sash joiner 1 becomes a single-drawn joinery and the sash frame 2 is in the recess 10 of the window frame 6. To move. On the other hand, if the projection 7 is inserted into the recess 8 as shown in FIG. 3B, the sash joiner 1 can be fixed to the window frame 6 at that position, and can function as a vibration control joiner.

  FIG. 3C shows a case where the sash joinery 1 is attached in a state of being fixed so as not to move with respect to the window frame 6, and the sash joinery 1 is attached to the groove-shaped recess 10 formed in the window frame 6. A channel-shaped fitting fixture 9 attached to the outer edge of the sash frame 2 is fixed. Thereby, the sash joinery 1 is fixed to the window frame 6 and can be employed in daily use without opening the window.

  Next, the connection structure between the divided bodies 4 of the sash joinery 1 will be described with reference to FIG. The divided bodies 4 are arranged side by side in the longitudinal direction in the longitudinal direction, and the upper and lower sides of the divided bodies 4 are connected to each other by viscoelastic bodies 5 to form the face material 3. The sash frame 2 is formed in a channel shape, and the left and right and upper and lower ends of the face material 3 are inserted into the sash frame 2 and fixed to the sash frame 2 with a fixed hardware 11.

  In this case, the upper end of the uppermost divided body 4 and the lower end of the lowermost divided body 4 are pin-coupled to the horizontal frame of the sash frame 2 with pin-shaped fixed hardware 11 at appropriate intervals. The left and right ends of the divided body 4 at the intermediate portion are pin-coupled to the vertical frame of the sash frame 2 by a fixed hardware 11 one by one.

  In the figure, reference numeral 12 denotes a sealing material that fills the gap between the front and rear surfaces of the divided body 4 and the sash frame 2, and 13 denotes a cushioning material interposed between the edge of the divided body 4 and the sash frame 2.

  As described above, the face material 3 is composed of a laminated body of the divided body 4 and the viscoelastic body 5, and the laminated structure will be described with reference to FIGS. FIG. 5 shows a basic example of a laminated structure, in which a plurality of divided bodies 4 arranged in parallel in the lateral direction are joined to each other by a viscoelastic body 5 in the vertical direction. As a method for joining the viscoelastic body 5 to the divided body 4, an adhesive is used, or the viscoelastic body 5 is directly joined to the divided body 4 by welding.

  The length in the height direction of each divided body 4 is determined in consideration of the clearance between the divided body 4 and the vertical frame portion of the sash frame 2 from the predicted deformation amount of the sash joinery 1 during an earthquake. And the vertical frame will not be damaged by collision.

  As the joining structure of the divided body 4, in addition to the structure joined only by the viscoelastic body 5 as shown in FIG. 5, the cross beam 14 is attached to the front and rear surfaces of the divided body 4 as shown in FIGS. 6 (a) and 6 (b). As shown in FIGS. 6 (c) and 6 (d), the horizontal crosspiece 14 is fixed to the divided body 4 with the crosspiece fixing plate 15 and the wood screw 16, and the divided bodies 4 are fixed to each other with the horizontal crosspiece 14. There is also a method in which the vertical pier 17 is used in addition to the horizontal pier 14 and the horizontal pier 14 and the vertical pier 17 are fixed in a lattice shape in the same manner.

  7 and 8 show the shape of each divided body 4, and in the example shown in FIGS. 7A, 7B, and 7C, the upper and lower ends of the divided bodies 4 are superposed and viscoelasticity is obtained at this superposed portion. The body 5 was sandwiched between them. In this case, even if the divided bodies 4 positioned above and below are alternately arranged back and forth as shown in FIG. 8B, the divided bodies 4 are inclined back and forth as shown in FIG. You may make it interpose the viscoelastic body 5 between the rear surface side of a lower end.

  In the example shown in FIGS. 8A, 8B, and 8C, the divided bodies 4 are butted up and down, and the upper and lower end surfaces are joined by the viscoelastic body 5, and FIG. It formed in flat plate shape, FIG.8 (c) formed the division body 4 in cross-sectional U shape.

  When such a sash joinery 1 is attached to the window frame 6, when the earthquake occurs, the entire building is horizontally deformed and an interlayer displacement occurs. However, as shown in FIG. Since it is pin-coupled by the sash frame 2 and the fixed hardware 11, the end portion rotates through this pin-coupled portion and moves horizontally alone. In this case, the amount of deformation between the divided bodies 4 is small, but the sash joinery 1 as a whole can cope with interlayer displacement. And since the absorption amount of the seismic energy for every division | segmentation body 4 can be made small, the seismic control function as the whole sash joinery can be made reliable by ensuring the seismic energy absorption for every division | segmentation body 4. FIG.

  In addition, each divided body 4 is connected to each other to form a single face member 3, but since the viscoelastic body 5 is used as the connecting member, the connecting member is separated from the divided body 4. Does not hinder the displacement.

It is explanatory drawing of the front side which shows embodiment of the damping structure of this invention. It is explanatory drawing of the interlayer displacement at the time of an earthquake. It is a vertical side view of the coupling | bond part of the sash joinery and window frame which shows embodiment of the damping structure of this invention. It is explanatory drawing of the coupling | bond part of the face material and sash frame which show embodiment of the damping structure of this invention. It is explanatory drawing of the junction part of the division bodies which shows embodiment of the damping structure of this invention. It is explanatory drawing of the face material which shows embodiment of the damping structure of this invention. It is explanatory drawing of the laminated structure of the division body which shows embodiment of the damping structure of this invention. It is explanatory drawing of the other example of the laminated structure of the division body which shows embodiment of the damping structure of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sash joinery 2 Sash frame 3 Face material 4 Divided body 5 Viscoelastic body 6 Window frame 7 Protrusion 8 Concave part 9 Fixture fixture 10 Recessed part 11 Fixed metal 12 Sealing material 13 Buffering material 14 Horizontal pier 15 Board fixing board 16 Wood screw 17 Vertical pier 21 Sash frame material 22 Viscous material 23 Transparent surface material

Claims (3)

  In a sash joinery in which a face material such as glass is mounted in a sash frame, the face material is formed by a set of a plurality of divided bodies divided at least in the lateral direction, and a viscoelastic body is interposed between the divided bodies. A damping structure characterized in that it is a laminated body and is attached to a sash frame so that each divided body can move horizontally through a viscoelastic body.   The vibration control structure according to claim 1, wherein the sash frame is mounted on an inner side of an existing window frame with an attachment member. The vibration control structure according to claim 1 or 2, wherein the face material is individually pinned to the sash frame with a fixed hardware for each divided body.

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